html {
    width: 100%;
    height: 100%;
}

body {
    font-family: Tahoma, sans-serif;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-head {
    color: #191919;
    font-weight: normal;
    margin: 0;
    text-align: center;
    font-size: larger;
}

.error_message {
    padding: 7px 10px;
    background: #fff1f2;
    border: #ffd5da 1px solid;
    color: #d6001c;
    border-radius: 4px;
    margin: 30px 10px 10px 10px;
}

.demo-table {
    background: burlywood;
    border-spacing: initial;
    word-break: break-word;
    table-layout: auto;
    line-height: 1.8em;
    color: #333;
    padding: 10px;
    font-size: 3em;
    border: solid 2px black;
    border-radius: 20px;
}

.field-column {
    padding: 15px 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
}

.field-row {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.demo-input-box {
    width: 150px;
    padding: 13px;
    border: #CCC 1px solid;
    border-radius: 4px;
    margin: 0 0 0 10px;
}

.btnLogin {
    padding: 13px;
    background-color: #5d9cec;
    color: #f5f7fa;
    cursor: pointer;
    border-radius: 4px;
    width: 100%;
    border: #5791da 1px solid;
    font-size: 1.1em;
}

.response-text {
    max-width: 380px;
    font-size: 1.5em;
    text-align: center;
    background: #fff3de;
    padding: 42px;
    border-radius: 3px;
    border: #f5e9d4 1px solid;
    font-family: arial, serif;
    line-height: 34px;
    margin: 15px auto;
}

.error-info {
    color: #FF0000;
    margin: 10px 0 0 0;
}

@media screen and (orientation: portrait) {
    .form-head {
        font-weight: bold;
        font-size: larger;
    }

    .error_message {
        font-size: large;
    }

    .demo-table {
        width: unset;
        font-size: 2em;
        padding: 0;
        margin: 10px;
    }

    .demo-input-box {
        background-color: #99aaff;
        width: unset;
        font-size: smaller;
    }

    .field-row {
        text-wrap-mode: nowrap;
    }

    .field-row > label {
        font-size: smaller;
    }

    .btnLogin {
        font-size: smaller;
    }
}

@media screen and (orientation: portrait) and (max-width: 640px) {
    .demo-table {
        font-size: 1.5em;
    }
}